An arrhythmia is a problem with the speed or rhythm of the heartbeat. During an arrhythmia, the heart can beat too fast, too slow, or with an irregular rhythm. A heartbeat that is too fast is called tachycardia. A heartbeat that is too slow is called bradycardia. Most arrhythmias are harmless, but some can be serious or even life threatening. When the heart rate is too slow, too fast, or irregular, the heart may not be able to pump enough blood to the body. Lack of blood flow can damage the brain, heart, and other organs.
Contrary to what was previously assumed, physical exercise does not lead to harmful ventricular enlargement.
More than $9 million in federal grants will help fund researchers in the Ohio State University Davis Heart and Lung Research Institute and their collaborators across the university campus to investigate new causes and treatments for cardiovascular disease.
Approximately 350,000 patients in Germany suffer from various forms of cardiac arrhythmia. The condition can lead to permanent damage as a result of stroke, or it may cause sudden heart failure.
Loyola Medicine is the only center in the Midwest enrolling patients in a landmark clinical trial of a new procedure to treat a life-threatening heart rhythm disorder called ventricular tachycardia.
More than half of patients with atrial fibrillation (AF) become asymptomatic after catheter ablation, reports the largest study of the procedure published today in European Heart Journal.
Of patients over age 65 who received an implantable cardioverter-defibrillator (ICD) after surviving sudden cardiac arrest or a near-fatal arrhythmia, almost 80 percent survived two years--a higher rate than found in past trials performed to demonstrate the efficacy of the devices in this situation, according to a study today in the Journal of the American College of Cardiology.
Atrial fibrillation, which is the most common cardiac arrhythmia, is an important risk factor for strokes.
For patients with atrial fibrillation, the most common form of heart arrhythmia, a main goal of treatment is stroke prevention.
A consortium directed by UCLA's Dr. Kalyanam Shivkumar has received a three-year, $8.6 million grant from the National Institutes of Health to map the heart's nervous system.
Iron accumulation in myocardial cells, potentially resulting in heart failure or fatal arrhythmia, is one of the complications most feared by patients with thalassemia major, a hereditary disease also known as Mediterranean anemia.
A suite of sensors can predict heart failure events by detecting when a patient's condition is worsening, according to Dr. John Boehmer, professor of medicine, Penn State College of Medicine, who presented the findings at the American Heart Association annual meeting in New Orleans.
Researchers at the Polytechnic University of Valencia and Hospital Gregorio Marañón in Madrid have partnered to develop a more efficient system for detecting and treating atrial fibrillation that will be in hospitals soon.
The term “stress” originates not in our minds or bodies, but from physics. It is the internal forces generated in an object in response to an external load. In the 1950s, Hans Selye adopted the term to characterize how living organisms change...
A new study led by clinician-researchers at Beth Israel Deaconess Medical Center testing the safety and effectiveness of anticoagulant strategies for patients with atrial fibrillation who undergo stenting procedures has shown that therapies combining the anticoagulant drug rivaroxaban with either single or dual anti-platelet therapy were more effective in preventing bleeding complications than the current standard of care.
Congenital heart disease (CHD), a group of abnormalities in the heart that develop before birth - including holes in the heart, leaky or narrow valves, and incomplete or missing parts - affects nearly one percent of all babies born in the United States each year - upwards of 40,000 infants.
Atrial fibrillation patients with a prior history of stroke who undergo catheter ablation to treat the abnormal heart rhythm lower their long-term risk of a recurrent stroke by 50 percent, according to new research from the Intermountain Medical Center Heart Institute.
EuroEcho-Imaging 2016 brings advanced techniques to the bedside with international experts set to discuss the use of holograms and 3D printing to guide interventions.
Combination therapy utilizing two approved immunotherapy drugs for cancer treatment may cause rare and sometimes fatal cardiac side effects linked to an unexpected immune response.
Scandinavian cardiovascular diagnostics specialist CardiNor AS today announced two new studies have been published by the group at Akershus University Hospital led by Professor Torbjørn Omland and Associate Professor Helge Røsjø in leading journals that strongly support secretoneurin as a new, important biomarker for cardiovascular disease.
Duke University biomedical engineers have harvested genes for ion channels from bacteria that, with a few tweaks, can create and enhance electrical signaling in human cells, making the cells more electrically excitable.